Genotypic Tropism Testing In Proviral Dna To Guide CCR5 Antagonist Treatment In Subjects With Undetectable HIV-1 Viremia
Use Of Genotypic HIV-1 Tropism Testing In Proviral DNA To Guide CCR5 Antagonist Treatment In Subjects With Undetectable HIV-1 Viremia
調査の概要
状態
状態
条件
条件
介入・治療
介入・治療
詳細な説明
The assessment of HIV-1 tropism is needed before starting treatment with a CCR5-antagonist. Several phenotypic and genotyping tropism tests have been developed in the recent years. Phenotypic assays (i.e. TrofileTM and ES-TrofileTM) have been used.in most clinical trials. Genotypic tropism testing, however, is easier, cheaper and faster than phenotypic methods, and can be performed in a local HIV laboratories.
Viral RNA amplification is difficult in subjects with HIV-1 RNA levels <500-1000 copies/mL. In these cases, the optimal source of genetic material is peripheral blood mononuclear cell (PBMC)-associated proviral DNA. Whereas genotypic tropism testing in proviral DNA is technically feasible, it has not been validated as a tool to predict sustained virological response to CCR5-antagonist therapy in subjects with undetectable viremia.
As of today, maraviroc is the only CCR5-antagonist approved for HIV treatment. It has few drug interactions and a good security profile, particularly in terms of lipid and glucose metabolism. Therefore, it might be an adequate alternative for HIV-1-infected individuals with suppressed viremia who experience antiretroviral-related toxicity or metabolic problems.
This study will evaluate 48-week virological outcomes in aviremic subjects with an R5 virus by proviral genotypic tropism testing who switch the "third drug" of their regimen to maraviroc.
研究の種類
研究の種類
入学 (実際)
入学
段階
段階
- フェーズ 4
連絡先と場所
研究場所
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Alicante、スペイン、03010
- Hospital Gral. U. de Alicante
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Barcelona、スペイン、08035
- Hospital Vall d'hebrón
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Barcelona、スペイン、08304
- Hospital de Mataró
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Granada、スペイン、18014
- Hospital Virgen de las Nieves
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Granada、スペイン、28012
- Hospital U. San Cecilio
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Madrid、スペイン、28040
- Hospital Clinico San Carlos
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Madrid、スペイン、28007
- Hospital U. Gregorio Marañón
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Madrid、スペイン、28034
- Hospital Ramon y Cajal
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Madrid、スペイン、28029
- Hospital Carlos III
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Murcia、スペイン、30003
- Hospital Reina Sofía de Murcia
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Tarragona、スペイン、43007
- Hospital Sant Pau i Santa Tecla
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Valencia、スペイン、46015
- Hospital Arnau de Vilanova
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Valencia、スペイン、46009
- Hospital La Fe
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Valencia、スペイン、46014
- Hospital Gral. U. de Valencia
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Valencia、スペイン、46017
- Hospital U. Dr. Peset
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A Coruña
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Santiago de Compostela、A Coruña、スペイン、15781
- Hospital Xeral de Vigo
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Alicante
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Elche、Alicante、スペイン、03203
- Hospital de Elche
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Baleares
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Palma de Mallorca、Baleares、スペイン、07011
- Hospital Son Espases
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Barcelona
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Badalona、Barcelona、スペイン、08916
- H. U. Germans Trias i Pujol
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Hospitalet de Llobregat、Barcelona、スペイン、08907
- H. de Bellvitge
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Cantabria
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Santander、Cantabria、スペイン、39011
- Hospital U. Marques de Valdecilla
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Castelló
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Castelló De La Plana、Castelló、スペイン、12004
- Hospital General de Castellon
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Murcia
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Cartagena、Murcia、スペイン、30203
- Hospital Sta. Lucía/ H. Sta. Mª del Rosell
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Vizcaya
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Bilbao、Vizcaya、スペイン、48903
- Hospital De Cruces
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参加基準
適格基準
適格基準
就学可能な年齢
健康ボランティアの受け入れ
受講資格のある性別
説明
Inclusion Criteria:
- HIV-1 infected patients.
- Age 18 or more.
- Antiretroviral treatment containing 2 Nucleoside/Nucleotide Reverse Transcriptase Inhibitors (NRTIs) plus 1 Non-nucleoside reverse-transcriptase inhibitor (NNRTI) or 1 protease inhibitor (PI) or 1 integrase inhibitor (ININ)
- Patients receiving stable antiretroviral treatment for at least 6 months.
- Viral load under 50 copies/mL in the last 6 months
- Patients with CCR5 tropism based in V3 genotyping in proviral DNA using the G2P with a false positive rate of 10% interpretation method.
- A change of treatment is needed due to toxicity / tolerability problems with the 3rd drug (PI, NNRTI or ININ), according to investigator criteria.
- An antiretroviral regimen containing a CCR5-antagonist is suitable for the patient (physician criteria).
- Voluntary written informed consent.
Exclusion Criteria:
- Pregnancy or breast-feeding.
- Patient previously treated with maraviroc.
- Patients with documented resistance to maraviroc or any other drug considered for the new ARV regimen.
- Viral failure in the moment of inclusion.
- Bad adherence history or anticipated (investigator criteria).
研究計画
研究はどのように設計されていますか?
デザインの詳細
- 主な目的:基礎科学
- 割り当て:なし
- 介入モデル:単一グループの割り当て
- マスキング:なし(オープンラベル)
アーム数
武器と介入
参加者グループ / アーム参加者グループ / アーム |
介入・治療介入・治療 |
|---|---|
|
実験的:Change of 3rd drug to maraviroc
Change of PI, NNRTI or integrase inhibitor to CCR5 antagonist (maraviroc)
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Change of PI, NNRTI or integrase inhibitor to CCR5 antagonist (maraviroc)
|
この研究は何を測定していますか?
主要な結果の測定
主要な結果の測定
結果測定 |
時間枠 |
|---|---|
|
Percentage of patients with viral load under 50 copies/mL
時間枠:Week 48
|
Week 48
|
二次結果の測定
二次結果の測定
結果測定 |
メジャーの説明 |
時間枠 |
|---|---|---|
|
Percentage of patients without confirmed virological failure.
時間枠:Up to week 48
|
To evaluate other aspects related to maintanence of virological response.
|
Up to week 48
|
|
Time to loss of virological response (TLOVR) < 200 copies/mL
時間枠:Up to week 48
|
To evaluate other aspects related to maintanence of virological response.
|
Up to week 48
|
|
Time to loss of virological response (TLOVR) < 50 copies/mL
時間枠:Up to week 48
|
To evaluate other aspects related to maintanence of virological response.
|
Up to week 48
|
|
Proportion of patients treated with maraviroc with viral load under 50 copies/mL
時間枠:Week 12
|
To evaluate other aspects related to maintanence of virological response
|
Week 12
|
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Proportion of patients treated with maraviroc with viral load under 50 copies/mL
時間枠:Week 24
|
To evaluate other aspects related to maintanence of virological response
|
Week 24
|
|
Proportion of patients treated with maraviroc with viral load under 50 copies/mL
時間枠:Week 36
|
To evaluate other aspects related to maintanence of virological response
|
Week 36
|
|
Proportion of patients treated with maraviroc with viral load under 50 copies/mL
時間枠:Week 48
|
To evaluate other aspects related to maintanence of virological response.
|
Week 48
|
|
Time to treatment discontinuation, overall, and due to factors other than loss of virological response
時間枠:Up to week 48
|
To evaluate other aspects related to maintanence of virological response
|
Up to week 48
|
|
Association between pre-treatment level of X4 viruses detected by deep sequencing at screening and virological response to maraviroc based therapy at week 48.
時間枠:Week 48
|
To evaluate changes in HIV tropism
|
Week 48
|
|
Level of X4 viruses by detected by population sequencing.
時間枠:Screening (up to 48 weeks)
|
Evolution of viral tropism in PBMC-associated DNA by population and deep sequencing between screening and week 48 in subjects treated with maraviroc.
|
Screening (up to 48 weeks)
|
|
Level of X4 viruses by detected by population sequencing.
時間枠:Week 12
|
Evolution of viral tropism in PBMC-associated DNA by population and deep sequencing between screening and week 48 in subjects treated with maraviroc.
|
Week 12
|
|
Level of X4 viruses by detected by population sequencing.
時間枠:Week 48
|
Evolution of viral tropism in PBMC-associated DNA by population and deep sequencing between screening and week 48 in subjects treated with maraviroc.
|
Week 48
|
|
Level of X4 viruses by detected by deep sequencing.
時間枠:Screening (up to 48 weeks)
|
Evolution of viral tropism in PBMC-associated DNA by population and deep sequencing between screening and week 48 in subjects treated with maraviroc.
|
Screening (up to 48 weeks)
|
|
Level of X4 viruses by detected by deep sequencing.
時間枠:Week 12
|
Evolution of viral tropism in PBMC-associated DNA by population and deep sequencing between screening and week 48 in subjects treated with maraviroc.
|
Week 12
|
|
Level of X4 viruses by detected by deep sequencing.
時間枠:Week 48
|
Evolution of viral tropism in PBMC-associated DNA by population and deep sequencing between screening and week 48 in subjects treated with maraviroc.
|
Week 48
|
|
High-resolution assessment of virus diversity and X4 level using deep sequencing
時間枠:Week 12
|
High-resolution assessment of virus diversity and X4 level using deep sequencing at week 12 and at the time of virological failure.
|
Week 12
|
|
High-resolution assessment of virus diversity and X4 level using deep sequencing
時間枠:In case of virological failure (week 12 up to virological failure)
|
High-resolution assessment of virus diversity and X4 level using deep sequencing at week 12 and at the time of virological failure.
|
In case of virological failure (week 12 up to virological failure)
|
|
Median change of total cholesterol.
時間枠:From baseline to week 48.
|
To evaluate the tolerability and safety with CCR5 antagonist containing regimen
|
From baseline to week 48.
|
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Median change of HDL cholesterol.
時間枠:From Baseline to week 48.
|
To evaluate the tolerability and safety with CCR5 antagonist containing regimen
|
From Baseline to week 48.
|
|
Median change of LDL cholesterol.
時間枠:From Baseline to week 48.
|
To evaluate the tolerability and safety with CCR5 antagonist containing regimen
|
From Baseline to week 48.
|
|
Median change of triglycerides
時間枠:From Baseline to week 48.
|
To evaluate the tolerability and safety with CCR5 antagonist containing regimen
|
From Baseline to week 48.
|
|
Median change of AST serum levels.
時間枠:From Baseline to week 48.
|
To evaluate the tolerability and safety with CCR5 antagonist containing regimen
|
From Baseline to week 48.
|
|
Median change of ALT serum levels.
時間枠:From Baseline to week 48.
|
To evaluate the tolerability and safety with CCR5 antagonist containing regimen
|
From Baseline to week 48.
|
|
Median change of alkaline phosphatase serum levels.
時間枠:From Baseline to week 48.
|
To evaluate the tolerability and safety with CCR5 antagonist containing regimen
|
From Baseline to week 48.
|
|
Median change of total bilirubin serum levels.
時間枠:From Baseline to week 48.
|
To evaluate the tolerability and safety with CCR5 antagonist containing regimen
|
From Baseline to week 48.
|
|
Cumulative number of adverse events
時間枠:Week 4
|
To evaluate the tolerability and safety with CCR5 antagonist containing regimen
|
Week 4
|
|
Cumulative number of adverse events
時間枠:Week 12
|
To evaluate the tolerability and safety with CCR5 antagonist containing regimen
|
Week 12
|
|
Cumulative number of adverse events
時間枠:Week 24
|
To evaluate the tolerability and safety with CCR5 antagonist containing regimen
|
Week 24
|
|
Cumulative number of adverse events
時間枠:Week 36
|
To evaluate the tolerability and safety with CCR5 antagonist containing regimen
|
Week 36
|
|
Cumulative number of adverse events
時間枠:Week 48
|
To evaluate the tolerability and safety with CCR5 antagonist containing regimen
|
Week 48
|
|
Cumulative number of grade 3-4 adverse events
時間枠:Week 4
|
To evaluate the tolerability and safety with CCR5 antagonist containing regimen
|
Week 4
|
|
Cumulative number of grade 3-4 adverse events
時間枠:Week 12
|
To evaluate the tolerability and safety with CCR5 antagonist containing regimen
|
Week 12
|
|
Cumulative number of grade 3-4 adverse events
時間枠:Week 24
|
To evaluate the tolerability and safety with CCR5 antagonist containing regimen
|
Week 24
|
|
Cumulative number of grade 3-4 adverse events
時間枠:Week 36
|
To evaluate the tolerability and safety with CCR5 antagonist containing regimen
|
Week 36
|
|
Cumulative number of grade 3-4 adverse events
時間枠:Week 48
|
To evaluate the tolerability and safety with CCR5 antagonist containing regimen
|
Week 48
|
|
Proportion of patients withdrawn from the study and reason for study withdrawal
時間枠:Up to week 48
|
To evaluate the tolerability and safety with CCR5 antagonist containing regimen
|
Up to week 48
|
協力者と研究者
スポンサー
スポンサー
研究記録日
主要日程の研究
研究開始
研究開始
一次修了 (実際)
一次修了
研究の完了 (実際)
研究の完了
試験登録日
最初に提出
最初に提出
QC基準を満たした最初の提出物
QC基準を満たした最初の提出物
最初の投稿 (見積もり)
最初の投稿
学習記録の更新
投稿された最後の更新 (実際)
投稿された最後の更新
QC基準を満たした最後の更新が送信されました
QC基準を満たした最後の更新が送信されました
最終確認日
最終確認日
詳しくは
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